©Lin Yangchen

Delicately sliced medium rare grilled rock steak with epoxy dressing

President John F. Kennedy said, "We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard."

Although what I'm about to do, unlike going to the moon, has been done many times before, it still qualifies as hard (pun intended) by microscopy specimen preparation standards.

Professional rock sectioning traditionally employs expensive heavy machinery, but with some patience and practice one can fabricate beautiful and scientifically informative petrographic slides at home with tools that one can easily find and afford.

To find the ingredients (actually the cooking utensils) I went to my favourite supermarket, eBay, and some other retailers in the huge shopping mall called the Internet, since I didn't dare to go out (it was mid-2021). The shopping list included a diamond wire handsaw and diamond lapping discs, which I got at much lower prices than your mom's rings and necklaces made of the same material.

My recipe is based on the online guide by Richard Hill from the Lunar & Planetary Laboratory at the University of Arizona. After reviewing multiple websites, I have implemented certain modifications in the hope of further simplifying the procedure while enhancing the final product.

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